Thin type sheet-reducing sticker

Abstract

A thin type tension reducing sticker comprises a thin film hook and loop fastener assembly and base layers arranged on the two sides of the wound closing direction respectively, and the thin film hook and loop fastener assembly comprises a hair face assembly and a hook face assembly which are oppositely arranged; the hook face assembly comprises a hook face base and fixing hooks, the multiple fixing hooks are arranged on the bottom face of the hook face base to form a to-be-bonded area, and the to-be-bonded area covers the bottom face of the free section. And the outer side edge of the bottom surface of the rough surface assembly and the outer side edge of the bottom surface of the fixed section are convex arc edges. The to-be-adhered area covers the bottom surface of the free section, so that the closing operation of the wound is simpler and more convenient, the adjustment is more accurate, the starting difficulty is reduced, and the wound dislocation phenomenon caused by excessive operation is avoided; the outer side edge of the bottom surface of the hair surface component and the outer side edge of the bottom surface of the fixed section are convex arc edges, and the hook surface base and the hair surface base are combined, so that the pressure and stimulation of the pasting on the skin in the use process are reduced, and the occurrence frequency of bruises and indentations is effectively reduced.

Description

Technical Field

[0001] This utility model patent relates to the field of medical skin tension-reducing devices, and in particular to a thin tension-reducing patch. Background Technology

[0002] To address and improve wound healing, existing medical skin tension-reducing devices include pull-tab tension reducers and hook-and-loop tension reducers. Pull-tab tension reducers use a pull bar and a snap-lock mechanism for locking. However, due to the small pawls on the snap-lock surface, the retraction and reset operation after locking is complex, hindering post-operative observation. Furthermore, the base material used is generally quite rigid, causing a strong foreign body sensation and potentially leading to skin injury with prolonged use. Therefore, they are only suitable for small wounds requiring short-term healing. Hook-and-loop tension reducers, on the other hand, typically achieve convenient locking and reset through repeated application of the hook and loop sides of the hook and loop fastener (Velcro), avoiding the difficulty of locking and resetting.

[0003] Existing hook-and-loop tension relievers (such as the skin fixation patch disclosed in CN 114305866A) connect an adhesive surface (hook surface) to a connecting unit (hookless area). The adhesive surface is located at one end of the connecting unit. When using it, consumers need to ensure that the wound is in a proper closed state while simultaneously aligning the hook surface with the rough surface to achieve adhesion and fixation. For complex wounds, controlling the initial distance between the two base layers is quite difficult, making it hard to achieve a complete hook-and-loop adhesion effect in one go. Furthermore, the hook surface setting in the fixation area limits the wound closure range to the length of the connecting unit, requiring the design of products with different lengths to meet market demand, which is inconvenient to use.

[0004] Furthermore, the reaction force of the aforementioned tension-reducing device in reducing the tension of the wound is prone to stress concentration at the point where the base layer is in contact with the skin. The base layer corresponding to the base or fixing unit is more likely to leave pressure marks or indentations. While retaining the wound healing function of the tension-reducing device, it is urgent to optimize its fixing unit and hook surface structure to alleviate the indentations caused by stress concentration. Utility Model Content

[0005] The purpose of this invention is to solve existing technical problems by proposing a thin, tension-reducing adhesive patch. Through improvements in the softness and flatness of the hook and loop components, the irritation to tissues and skin during use is reduced.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a thin tension-reducing adhesive tape, comprising a film hook and loop assembly and a base layer disposed on both sides of the wound closure direction, the film hook and loop assembly comprising a rough surface assembly and a hook surface assembly disposed opposite to each other; the hook surface assembly comprises a fixed section and a free section, the fixed section being fixedly connected to one side of the base layer, and the free section being exposed on the same side of the base layer; the rough surface assembly is fixed to the base layer on the other side.

[0007] The hook surface assembly includes a hook surface base and fixed hooks. The bottom surface of the hook surface base is provided with several fixed hooks to form a bonding area, and the bonding area covers the bottom surface of the free section. The bottom surface of the fixed section is attached to one side of the base layer, and the bottom surface of the textured surface assembly is attached to the other side of the base layer. The textured surface assembly includes a textured surface base and several closed coils that are bonded and matched to the bonding area. The closed coils are fixed to the top surface of the textured surface base to form a textured surface, and the length of the bonding area is longer than the length of the textured surface.

[0008] The outer edges of both the bottom surface of the rough-surface component and the bottom surface of the fixed section are convex arc edges.

[0009] The hook surface substrate is a flexible, non-elastic film;

[0010] The fixed hook is fixed to the bottom surface of the hook surface base by injection molding process. The thickness of the hook surface component is 0.5-0.7 mm; the thickness of the rough surface component is 0.5-0.7 mm.

[0011] Preferably, the width of the free segment increases as the distance between it and the fixed segment increases.

[0012] Preferably, the width of the rough surface is greater than the maximum width of the free segment, and the rough surface and the free segment have a first gap located between the upper edge of the rough surface and the upper edge of the free segment and a second gap located between the lower edge of the free segment and the lower edge of the rough surface in the width direction.

[0013] Preferably, the fixing hook is a Y-shaped hook or a J-shaped hook.

[0014] Preferably, the textured base is cut from a non-elastic mesh fabric.

[0015] Preferably, the orthographic projections of the bottom surface of the textured component and the bottom surface of the fixed section onto the base layer are both horseshoe-shaped, and the corners of the bottom surface of the textured component and the bottom surface of the fixed section are both rounded.

[0016] Preferably, there are no fewer than two film hook and loop fasteners, and the rough surface and hook surface components are alternately arranged on the same side of the base layer.

[0017] Preferably, both the bottom surface of the fixed section and the bottom surface of the rough surface component are fixed to the top surface of the base layer with adhesive.

[0018] Preferably, the area to be bonded is completely overlapped with the bottom surface of the hook base, and the fixing hook located in the fixing section is heat-melted to form the bottom surface of the fixing section, which is then fixed to the top surface of the base layer with adhesive.

[0019] Preferably, the bottom surface of the base layer is also provided with release paper.

[0020] The beneficial effects of this utility model are: the bottom surface of the free section is covered by the adhesive area, which makes the wound closure operation simpler and the adjustment more precise, reduces the difficulty of operation, and avoids wound misalignment caused by excessive operation; the outer edges of the bottom surface of the textured component and the outer edges of the bottom surface of the fixed section are both convex arc edges, which, combined with the hook base and the textured base, reduces the pressure and irritation on the skin during use, and effectively reduces the frequency of pressure sores and indentations. Attached Figure Description

[0021] Figure 1 This is a schematic diagram illustrating the use of a thin, tension-reducing adhesive of this utility model. Figure 2 (After the free segment is trimmed while the wound is closed);

[0022] Figure 2 This is a schematic diagram illustrating the use of a thin, tension-reducing adhesive of this utility model. Figure 1 (With the wound open);

[0023] Figure 3 This is a schematic diagram of the structure of the textured surface component of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the film hook and loop fastener assembly of this utility model (view from above, hook area). Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In conjunction with the embodiments and appendices Figure 1-4 A thin tension-reducing adhesive bandage includes a film hook and loop assembly and a base layer 1 disposed on both sides of the wound 4 in the closure direction. The film hook and loop assembly includes a rough surface assembly 3 and a hook surface assembly disposed opposite to each other. The hook surface assembly includes a fixed section 211 and a free section 212. The fixed section 211 is fixedly connected to one side of the base layer 1, and the free section 212 is exposed on the same side of the base layer. The rough surface assembly 3 is fixed to the base layer 1 on the other side.

[0027] The hook surface assembly includes a hook surface base 21 and fixing hooks 22. The bottom surface of the hook surface base 21 is provided with a plurality of fixing hooks 22 to form a bonding area 201, and the bonding area 201 covers the bottom surface 202 of the free section. The bottom surface 203 of the fixing section is attached to one side of the base layer 1, and the bottom surface 302 of the textured surface assembly is attached to the other side of the base layer 1. The textured surface assembly 3 includes a textured surface base 31 and a plurality of closed coils 32 that are bonded and matched to the bonding area. The closed coils 32 are fixed to the top surface of the textured surface base 31 to form a textured surface 301, and the length of the bonding area 201 is longer than the length of the textured surface 301.

[0028] The outer edge 300 of the bottom surface of the rough surface component and the outer edge 200 of the bottom surface of the fixed section are both convex arc edges;

[0029] The hook-face substrate 21 is a flexible, non-elastic film;

[0030] The fixed hook 22 is fixed to the bottom surface of the hook base 21 by injection molding process. The thickness of the hook surface assembly is 0.5-0.7 mm; the thickness of the rough surface assembly 3 is 0.5-0.7 mm.

[0031] A thin tension-reducing dressing has a base layer 1 made of pressure-sensitive adhesive tape made of low-allergenic medical tape. An ultra-thin polyester film is laminated to the top surface of the base layer, and release paper 10 is also provided on the bottom surface of the base layer 1. The hook-face and textured base layers improve the softness and flatness of the hook-face and textured components, reducing irritation to tissues and skin during use. The pressure-sensitive tape, hook-face, and textured components work together to achieve a flexible dynamic balance, stably maintaining tension mitigation and reducing stress. Simultaneously, the convex arc edge reduces stress concentration caused by tension reduction, enhancing its effectiveness on wider wounds. Finally, the design of the free section covering the adhesive area eliminates the need for the user to worry about the distance between the adhesive area and the textured surface. The base layers on both sides of the wound closure direction are set according to the wound width, and the adhesive distance is adjusted autonomously by the free section to achieve a suitable closure effect. During adjustment, the film hook and loop fasteners can be repeatedly used to prevent wound misalignment. After adjustment, the portion of the free section far from the fixed section and exposed on the textured surface can be cut off to complete the adhesion. The design of the adhesive area covering the bottom surface of the free section allows the product to adapt to the width of small wounds without changing the product specifications, while also adapting to the maximum wound size width.

[0032] The hook-face substrate 21 and the textured substrate 31 are made of polymer materials. Both the hook-face substrate and the textured substrate are polypropylene films or synthetic resin films, and the Shore hardness of the hook-face substrate does not exceed 60A. The textured substrate is cut and shaped from non-elastic mesh fabric.

[0033] Furthermore, the hook and loop assembly is made of polypropylene injection-molded hook and loop fastener, allowing the hook and loop base to retain the fastening function while being both waterproof and breathable. The loop fastener assembly can be made of non-elastic mesh loop fabric, providing breathability. The film hook and loop fastener assembly is a non-slip hook and loop fastener assembly.

[0034] A thin, tension-reducing adhesive, wherein the shear strength of the textured surface component 3 and the hook-and-loop component is not less than 3.5 N / cm. 2 This increases the maximum wound width that the adhesive tape can accommodate from 5 mm to 18 mm. The shear strength of the hook and loop fastener components can be achieved by matching the hook and loop fastener components with appropriate hook and loop fasteners, based on the shape, arrangement, and density of the hooks. Both the hook and loop fastener bases are made of non-elastic materials to ensure uniform and stable shear strength of the film hook and loop fastener assembly.

[0035] A thin tension-reducing dressing has a free segment 212 whose width increases with the distance between it and the fixed segment 211, to accommodate the closure force required for wounds of different sizes.

[0036] A thin tension-reducing adhesive has a textured surface 3 with a width greater than the maximum width of the free segment 212. The textured surface 301 and the free segment 212 have a first gap between the upper edge of the textured surface and the upper edge of the free segment and a second gap between the lower edge of the free segment and the lower edge of the textured surface in the width direction. The first and second gaps reserved in the textured surface assembly can disperse the stress concentration caused by the tension reduction effect and effectively avoid the generation of indentations.

[0037] A thin tension-reducing adhesive patch has a Y-shaped or J-shaped fixing hook 22. The thickness of the base layer 1 is 0.15-0.25 mm, resulting in an overall product thickness between 0.65-0.95 mm. Even when the hook surface assembly, the fleece surface assembly, and one end of the base layer are stacked simultaneously, the overall thickness of the thin tension-reducing adhesive patch does not exceed 2 mm. Through its ultra-thin and flexible design, the product's weight is effectively reduced, while also minimizing pressure on the skin and preventing secondary pressure marks from the base layer on the skin during accidental impacts.

[0038] Furthermore, the fixed hooks 22 are arranged in an alternating pattern on the bottom surface of the hook base 21, and the hook surfaces of the fixed hooks 22 are set parallel to the width direction of the hook base 21.

[0039] A thin, tension-reducing adhesive is provided, wherein the orthographic projections of the bottom surface 302 of the textured component and the bottom surface 203 of the fixed section onto the substrate layer 1 are both horseshoe-shaped, and the corners of both the bottom surface 302 of the textured component and the bottom surface 203 of the fixed section are rounded. The horseshoe shape ensures that the corners of the bottom surfaces of the textured component and the fixed section are obtuse angles, preventing scratches on the substrate layer caused by pressure on sharp parts. Alternatively, the bottom surfaces of the textured component and the fixed section can also be irregular polygons with obtuse angles.

[0040] A thin, tension-reducing adhesive includes at least two film hook-and-loop fasteners and two base layers. On the same side of the base layer 1, textured surface components 3 and hook-and-loop components are alternately arranged. This staggered arrangement ensures that the base layers on both sides maintain a balance of forces during use, thus maintaining overall fixation.

[0041] A thin, tension-reducing adhesive tape has a fixed section bottom surface 203 and a textured surface component bottom surface 302 both fixed to the top surface of a base layer 1 by adhesive. The hook surface component, formed by injection-molded hook and loop fasteners, has its bonding area 201 completely overlapping with the bottom surface of the hook surface base 21. The fixing hook 22 located within the fixed section 211 is heat-melted to form the fixed section bottom surface 203, which is then fixed to the top surface of the base layer 1 by adhesive.

[0042] A thin-film, tension-reducing assembly method: The injection-molded hook and loop fastener is cut to obtain the hook surface assembly. The fixing hook in the fixing section is then heat-melted to form the bottom surface of the fixing section. The bottom surface of the fixing section is then fixed to the base layer by adhesive or ultrasonic welding. The bottom surface of the rough surface assembly is directly fixed to the base layer by adhesive or ultrasonic welding, thus completing the assembly operation. The assembly is convenient and effectively improves production efficiency.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1.A thin tension-reducing patch, comprising a film hook-and-loop assembly and a base layer (1) arranged on both sides of a wound closure direction, characterized in that: the film hook-and-loop assembly comprises a loop face assembly (3) and a hook face assembly arranged oppositely; the hook face assembly comprises a fixed section (211) and a free section (212), the fixed section (211) is fixedly connected with one side of the base layer (1), and the free section (212) is exposed on the same side of the base layer; the loop face assembly (3) is fixed to the other side of the base layer (1); the hook face assembly comprises a hook face base (21) and a plurality of fixed hooks (22), the hook face base (21) is provided with a plurality of fixed hooks (22) on the bottom surface to form a to-be-stuck area (201), and the to-be-stuck area (201) covers the bottom surface (202) of the free section; the bottom surface (203) of the fixed section is attached to one side of the base layer (1), and the bottom surface (302) of the loop face assembly is attached to the other side of the base layer (1); the loop face assembly (3) comprises a loop face base (31) and a plurality of closed loops (32) matched with the to-be-stuck area for adhesion, the closed loops (32) are fixed to the top surface of the loop face base (31) to form a loop face (301), and the length of the to-be-stuck area (201) is longer than the length of the loop face (301); the outer side edge (300) of the bottom surface of the loop face assembly and the outer side edge (200) of the bottom surface of the fixed section are both convex arc edges; the hook face base (21) is a flexible and non-elastic film; the fixed hooks (22) are fixed to the bottom surface of the hook face base (21) by an injection molding process, the thickness of the hook face assembly is 0.5-0.7 mm, and the thickness of the loop face assembly (3) is 0.5-0.7 mm; the width of the free section (212) increases with the distance between the free section (212) and the fixed section (211); the width of the loop face (301) is greater than the maximum value of the width of the free section (212), and the loop face (301) and the free section (212) leave a first gap between the upper edge of the loop face and the upper edge of the free section and a second gap between the lower edge of the free section and the lower edge of the loop face in the width direction; the fixed hooks (22) are Y-shaped hooks or J-shaped hooks; the loop face base (31) is cut and formed from a non-elastic mesh cloth; the bottom surface (302) of the loop face assembly and the bottom surface (203) of the fixed section are both horse-shoe-shaped in the orthographic projection on the base layer (1), and the corners of the bottom surface (302) of the loop face assembly and the bottom surface (203) of the fixed section are all rounded; the number of the film hook-and-loop assemblies is not less than two, and the loop face assembly (3) and the hook face assembly are alternately arranged on the same side of the base layer (1); the bottom surface (203) of the fixed section and the bottom surface (302) of the loop face assembly are both fixed to the top surface of the base layer by an adhesive; the to-be-stuck area (201) is completely coincident with the bottom surface of the hook face base (21), the fixed hooks (22) located in the fixed section (211) are treated by hot melting to form the bottom surface (203) of the fixed section, and the bottom surface (203) of the fixed section is fixed to the top surface of the base layer (1) by an adhesive; the bottom surface of the base layer (1) is further provided with a release paper (10). ​ ​ ​ ​ ​ 2. A thin tension-reducing tape according to claim 1, characterized in that: ​ 3. A thin tension-reducing tape according to claim 2, wherein: ​ 4. A thin tension-reducing tape according to claim 1, wherein: ​ 5. A thin tension-reducing tape according to claim 1, wherein: ​ 6. A thin tension-reducing tape according to claim 1 or 3, wherein: ​ 7. A thin tension-reducing tape according to claim 1 or 2, characterized in that: ​ 8. A thin tension-reducing tape according to claim 1, wherein: ​ 9. A thin tension-reducing tape according to claim 8, characterized in that: ​ 10. A thin tension-reducing tape according to any one of claims 1-5, characterized in that: ​

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